We have only one input. If our number is one, it means that it is head of the coin, and in other situation it means tail of the coin. So you need count how many coins we need to flip to get all heads.
Example
x = [1 0 0 1 0]
answer is : 3
Because there are 3 tails
GLHF
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Last Solution submitted on Jul 06, 2025

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